def test_custom_user_valid(self):
User = get_user_model()
u = User(identifier="customuser")
u.save()
validate_user("customuser")
def test_custom_user_invalid(self):
with self.assertRaises(ValidationError):
validate_user("nottestuser")
def test_valid_user(self):
User = get_user_model()
User.objects.create_user(username="******", email="test@user")
validate_user("testuser")